java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_o20.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:34:15,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:34:15,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:34:15,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-11 16:34:15,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:34:15,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:34:15,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:34:15,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:34:15,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:34:15,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:34:15,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:34:15,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:34:15,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:34:15,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:34:15,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:34:15,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:34:15,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 16:34:16,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 16:34:16,007 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 16:34:16,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 16:34:16,008 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-11 16:34:16,029 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:34:16,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:34:16,030 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:34:16,030 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:34:16,031 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:34:16,031 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:34:16,031 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:34:16,032 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:34:16,032 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:34:16,032 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:34:16,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:34:16,033 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:34:16,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:34:16,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:34:16,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:34:16,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:34:16,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:34:16,034 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:34:16,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:34:16,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:34:16,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:34:16,035 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:34:16,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:34:16,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:34:16,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:34:16,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:34:16,036 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:34:16,036 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:34:16,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:34:16,037 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:34:16,065 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:34:16,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:34:16,081 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:34:16,083 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:34:16,083 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:34:16,084 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_o20.c [2019-09-11 16:34:16,146 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33ba73050/e7921ad4e7f941399bf21309acd4c3cc/FLAG5cc82be9c [2019-09-11 16:34:16,621 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:34:16,624 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/id_o20.c [2019-09-11 16:34:16,630 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33ba73050/e7921ad4e7f941399bf21309acd4c3cc/FLAG5cc82be9c [2019-09-11 16:34:17,043 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33ba73050/e7921ad4e7f941399bf21309acd4c3cc [2019-09-11 16:34:17,056 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:34:17,058 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:34:17,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:34:17,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:34:17,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:34:17,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:34:17" (1/1) ... [2019-09-11 16:34:17,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e610fd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:17, skipping insertion in model container [2019-09-11 16:34:17,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:34:17" (1/1) ... [2019-09-11 16:34:17,074 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:34:17,088 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:34:17,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:34:17,262 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:34:17,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:34:17,296 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:34:17,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:17 WrapperNode [2019-09-11 16:34:17,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:34:17,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:34:17,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:34:17,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:34:17,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:17" (1/1) ... [2019-09-11 16:34:17,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:17" (1/1) ... [2019-09-11 16:34:17,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:17" (1/1) ... [2019-09-11 16:34:17,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:17" (1/1) ... [2019-09-11 16:34:17,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:17" (1/1) ... [2019-09-11 16:34:17,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:17" (1/1) ... [2019-09-11 16:34:17,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:17" (1/1) ... [2019-09-11 16:34:17,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:34:17,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:34:17,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:34:17,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:34:17,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:34:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:34:17,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:34:17,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:34:17,477 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2019-09-11 16:34:17,477 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:34:17,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-11 16:34:17,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:34:17,478 INFO L130 BoogieDeclarations]: Found specification of procedure id [2019-09-11 16:34:17,478 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:34:17,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:34:17,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:34:17,634 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:34:17,635 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-11 16:34:17,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:34:17 BoogieIcfgContainer [2019-09-11 16:34:17,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:34:17,637 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:34:17,638 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:34:17,638 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:34:17,639 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:34:17" (1/1) ... [2019-09-11 16:34:17,664 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:34:17,734 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-11 16:34:17,811 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-11 16:34:17,817 INFO L272 AbstractInterpreter]: Visited 20 different actions 69 times. Merged at 7 different actions 27 times. Never widened. Performed 49 root evaluator evaluations with a maximum evaluation depth of 4. Performed 49 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 4 fixpoints after 2 different actions. Largest state had 5 variables. [2019-09-11 16:34:17,818 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:34:17,820 INFO L168 Benchmark]: Toolchain (without parser) took 761.45 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 89.1 MB in the beginning and 162.1 MB in the end (delta: -73.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-11 16:34:17,822 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 107.3 MB in the beginning and 107.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-11 16:34:17,823 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.16 ms. Allocated memory is still 140.5 MB. Free memory was 88.9 MB in the beginning and 79.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-09-11 16:34:17,824 INFO L168 Benchmark]: Boogie Preprocessor took 127.52 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 79.8 MB in the beginning and 180.2 MB in the end (delta: -100.3 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-09-11 16:34:17,825 INFO L168 Benchmark]: RCFGBuilder took 211.90 ms. Allocated memory is still 202.4 MB. Free memory was 180.2 MB in the beginning and 170.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-09-11 16:34:17,826 INFO L168 Benchmark]: Abstract Interpretation took 180.29 ms. Allocated memory is still 202.4 MB. Free memory was 170.1 MB in the beginning and 162.1 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 7.1 GB. [2019-09-11 16:34:17,832 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 107.3 MB in the beginning and 107.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 238.16 ms. Allocated memory is still 140.5 MB. Free memory was 88.9 MB in the beginning and 79.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.52 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 79.8 MB in the beginning and 180.2 MB in the end (delta: -100.3 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 211.90 ms. Allocated memory is still 202.4 MB. Free memory was 180.2 MB in the beginning and 170.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 180.29 ms. Allocated memory is still 202.4 MB. Free memory was 170.1 MB in the beginning and 162.1 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location RESULT: Ultimate proved your program to be correct! Received shutdown request...